Abstract: A method of repairing in situ a pipe or tank of thermo-fusible material, with a step for installing an electric heating element, the heating element including electrical conductors, and with a step for supplying said conductors with appropriate electric energy. The electrical conductors are supplied by a control panel set up prior to the repair and matching, for different thermo-fusible materials and different types of damage of the pipe or tank to be repaired, at least one technical characteristic of the pipe or tank, one characteristic of the electric energy to be applied and a profile of the application time of the electric energy.

Abstract: A perforating device capable of perforating a process for perforating a fluid duct having a connector seat with a tapped barrel. The device generally includes a hollow cylindrical body, a cutting apparatus, a fluid passage and a valve. The cylindrical body has an internal volume, a longitudinal axis, a first open end, a second end opposite the first, and a threaded external surface. The cylindrical body can be threadingly received or retracted within the barrel such that the cylindrical body moves along the barrel toward or away from the fluid duct. The cutting apparatus is operably coupled to an end of the cylindrical body and is adapted to cut the duct by screwing the body into the barrel. The valve seals the internal volume of the cylindrical body in response to a differential pressure between the interior of the duct and the ambient atmosphere to prevent leakage from the duct.

Abstract: The invention concerns an energy production unit, of electric energy in particular, comprising a fuel cell (1) and a heat source (2) thermally coupled to the fuel cell (1) at least to allow the rise in temperature of this fuel cell (1). According to the invention, it is provided that the heat source (2) comprises a radiating burner (20), that the fuel cell (1) is confined within a thermal insulation enclosure itself heated by the combustion gases (F) derived from the burner (20), and that this unit also comprises temperature regulation means (4) capable of controlling, from around 200° C. to at least 800° C., the temperature of the combustion gases (F) heating the enclosure 3.

Abstract: The invention relates to a device and a method for welding two polymer parts via fusion using a heater mat knitted from a resistive wire coated with an insulating varnish, the heater mat being given a final shape. The heater mat is resistive wire having a diameter ranging from 0.2 mm to 0.3 mm, and has approximately parallelepiped meshes, the dimensions of which range from 1.5×3 mm2 to 2.5×4.5 mm2.

Abstract: The invention relates to a radiant gas burner device comprising a first cylindrical chamber (1) and a first injector (2) for feeding the first chamber with a combustible gas mixture, the first chamber (1) comprising an external peripheral heating surface (10). The device of the invention further comprises a second cylindrical and hollow second chamber, and a second injector (4) for feeding the second chamber with a combustible gas mixture, the second chamber being positioned inside the first chamber (1), separated from the first chamber by a sealed wall, and having an internal heating surface (30), and the first and second injectors (2, 4) being designed for separately feeding the first and second chambers, independently of each other.

Abstract: The method of automatic optimization is applied to a natural gas transport network in the steady state comprising at one and the same time a set of passive works such as pipelines or resistances, and a set of active works comprising regulating valves, isolating valves, compression stations, storage or supply devices, consumption devices, elements for bypassing the compression stations and elements for bypassing the regulating valves, the passive works and the active works being linked together by junctions. The optimization method comprises the determination of values for continuous variables. Intervals of values for the continuous variables and sets of values for the discrete variables are chosen as initial state of the optimization.

Abstract: According to the method of optimizing the filling of a storage facility for a raw material offered during a given subscription period (a) there are collected subscription demands DSks comprising for each subscriber first and second firm profiles PF1s, PF2s to quantify the foreseeable consumption capacity demands in a succession of predefined time intervals n; (b) a test is applied to all the second firm profiles PF2s for each of the time intervals n to determine if the corresponding consumption capacity is less than or equal to the total capacity CTn of the storage facility; (c) if the result of the preceding test is negative, a test is applied in the time intervals n in which the total capacity CTn of the storage facility is exceeded by the consumption capacity corresponding to all the second firm profiles PF2s to determine if the consumption capacity corresponding to one or more second firm profiles PF2s exceeds a threshold corresponding to a portion ?CTn of the total capacity CTn of the storage facility; (

Abstract: The invention relates to a flow control device which is insertable into a fluid pipeline (K) and comprising a valve (1), an obturator with membrane (2), and anchoring flaps (3) that can deploy like umbrella spokes under the action of an elastic stress until it presses against the wall (P) of the pipeline (K). According to the invention, the membrane (2) and the flaps (3) are mutually attached to and disposed on a same side of the valve body (10), so that as the flaps (3) deploy the membrane (2) deploys at the same time until the membrane presses against the internal wall of the pipeline (K) and the fluid exerts on the deployed membrane a pressure which increases the pressure of the flaps (3) against this wall (P).

Abstract: The method and the system for capturing the carbon dioxide present in flue-gas implement a) a first cooler device (110, 120) for cooling flue-gas and comprising at least one heat exchanger (122) for eliminating a fraction of the water present in the flue-gas by condensation; b) a flue-gas dehydration device (130); c) a second cooler device (140) for cooling the flue-gas and comprising at least one heat exchanger (141, 142) for bringing the flue-gas to a temperature that causes anti-sublimation of the carbon dioxide present in the flue-gas; d) a heater device (141, 142) in a closed enclosure for heating the solidified carbon dioxide to cause it to melt; and e) a device (144) for drawing off or pumping liquid and/or gaseous carbon dioxide to a thermally insulated tank (150).

Abstract: A device for seismic emission in an underground formation comprising one or more vibrators of any type and method for implementing same. According to a preferred embodiment, each vibrator comprises at least one pillar (1) of sensitive elements (of piezoelectric type for example) between two end plates or slabs (2, 3) and a signal generator for applying vibrational signals to the pillar. The pillar (1) is coated with a protective sheath (4) and the vibrator is positioned in a well or cavity (W) and embedded in a mass of a solid coupling material (7) in contact with protective sheath (4) and the two end plates (2, 3) over at least part of each of the respective faces thereof, which provides coupling of the vibrator with the surrounding formation. The vibrators can be buried at intervals in relation to one another in a well. Sequential triggering thereof with selected delays allows reinforcement of the waves emitted by the device in a preferred direction.

Abstract: This invention is a method of separating induced microseismicity signals from seismic signals acquired within active seismic monitoring operations carried out in underground zones under development which has application for monitoring of underground hydrocarbon or fluid storage reservoirs. Seismic records are formed from signals emitted by one or more seismic sources controlled by orthogonal signals. In this case, the signals are processed to separate the respective contributions of the at least one seismic source to the signals received and to reconstruct the seismograms equivalent to those that would be obtained by actuating the at least one seismic source separately.

Abstract: The flow conditioner for a fluid transport pipe, comprises a support-forming substantially tubular main body, at least one flow rectifier disposed inside the main body essentially perpendicularly to the axis XX? thereof, and a porous plate disposed inside the main body upstream from the flow rectifier and parallel thereto. The elements of the conditioner are disposed in such a manner that a substantial fraction of the fluid flow passes through the flow rectifier and the porous plate in the absence of the porous plate becoming clogged. A bypass circuit is provided to ensure fluid flow continuity in the event of the porous plate becoming clogged.

Abstract: Method in which the following operations are carried out: a) digging an exploration hole (8) in order to open up a main pipeline (2) which has an upper edge (10) which extends at an upper level (12) which is substantially constant relative to the ground (6), b) using a branch connection (14) which has a support surface (16) and a shaft (18) to which the branch pipe is connected, c) positioning the support surface (16) of the branch connection (14) against the main pipeline (2) so that the shaft (18) is below the upper level (12) of the main pipeline (2), d) fixing the branch connection (14) to the main pipeline (2), e) placing the branch pipe and the main pipeline (2) in communication, f) refilling the exploration hole (8), whilst keeping the branch pipe below the upper level (12) of the main pipeline (2).

Abstract: Seismic emission system for use in an underground formation, using at least one seismic source movable successively in a plurality of prepared activation locations and method for implementing same. The system comprises for example a plurality of coupling devices (1) including each for example two anchor elements (12, 9?) tightly coupled with the formation (by cementing for example). These anchor elements are secured to the seismic source (V) such as a vibrator of any type or an impulsive source by transmission elements (10, 13). The seismic source is coupled with coupling device (1) by fast locking means (18, 19). Coupling devices (1) can be preinstalled at a plurality of prepared activation locations above the formation to be monitored. Seismic monitoring operations can be carried out by moving at least one seismic source successively between the different locations where coupling devices (1) are installed.

Abstract: The system for evaluating leaktightness is applied to a gas storage device for storing high pressure fuel gas delivered from a filling station via a filler hose connected to the gas storage device, itself comprising pipework and at least one tank, together with at least one check valve disposed between the pipework and the tank. The system comprises a pressure-measuring device that is suitable for connection to the filler hose or to the pipework, a processor device for processing values measured by the pressure-measuring device, and a display device for displaying information supplied by the processor device. The device for processing values measured by the pressure-measuring device includes a device for controlling filling and for suspending filling of the fuel gas storage device from the filling station, a device for controlling the filling flowing rate, a clock, and a unit for comparing the measured pressure relative to predetermined thresholds Si during periods in which filling is suspended.

Abstract: The invention relates to a device and a method for welding two polymer parts via fusion using a heater mat knitted from a resistive wire coated with an insulating varnish, the heater mat being given a final shape. The heater mat is resistive wire having a diameter ranging from 0.2 mm to 0.3 mm, and has approximately parallelepiped meshes, the dimensions of which range from 1.5×3 mm2 to 2.5×4.5 mm2.

Abstract: The following operations are carried out: a) digging an exploration hole (8), b) using a branch connection (10) which includes a main plate (12) and a fixing plate (22) which are held together, c) using a device (1) which has: a support (36) retaining elements, (38) which are connected to the support (36), a foot (40) which is articulated so as to rotate relative to the support (36), actuation elements (44) for displacing the foot (40) between an introduction position and a pressing position, d) placing the foot (40) in an introduction position, e) retaining the main plate (12) on the device (1), f) positioning the support surface (14) of the main plate (12) against the pipeline (2), g) bringing the foot (40) into a pressing position, h) fixing the main plate (12) and the fixing plate (22) together around the pipeline (2).

Abstract: The invention concerns an identification process that makes it possible to confer traceability to manufactured products (PROD), from data of origin (C, D) initially brought together at a source point (P_SOURCE) and including a control identification number (C) and manufacturing data (D) common to these products (PROD). The process of the invention provides for the formation of two parallel information flows, (?1 and ?2), each of which ensures a propagation of the data of origin (C, D) in time and space from the source point (P_SOURCE), and includes three tests (COMPAR—1, COMPAR—2, COMPAR—3) that makes it possible to verify the internal consistency and integrity of these data of origin in the form in which they are propagated.

Abstract: A method of transmitting information between a salt-cavern and the surface of the ground, the cavern being drilled in geological formation beds and being connected to the surface via an access borehole cased at least in part by metal tubes and presenting at least one safety valve, the method consisting in suspending a string of tools from a hanger system positioned in the access borehole downstream from the safety valve and in electrical contact with the metal tubes, the string of tools including at least one measuring device connected to the hanger system via a first segment of conductor cable and an information transceiver operating by means of waves and connected to the measuring device via a second segment of conductor cable, the transceiver being positioned in such a manner as to be in contact with structural means linked to the cavern; and establishing coupling between the transceiver and the structural means, in order to enable information to be transmitted between the measuring device and the surface

Abstract: The invention relates to a flow control device which is insertable into a fluid pipeline (K) and comprising a valve (1), an obturator with membrane (2), and anchoring flaps (3) that can deploy like umbrella spokes under the action of an elastic stress until it presses against the wall (P) of the pipeline (K). According to the invention, the membrane (2) and the flaps (3) are mutually attached to and disposed on a same side of the valve body (10), so that as the flaps (3) deploy the membrane (2) deploys at the same time until the membrane presses against the internal wall of the pipeline (K) and the fluid exerts on the deployed membrane a pressure which increases the pressure of the flaps (3) against this wall (P).